Uranium/Vanadium Separation from El-Sahu Carnotite-Bearing Kaolin, Southwestern Sinai, Egypt

A working sample of the lower Carboniferous carnotite-bearing kaolin of wadi El Sahu, Southwestern, Sinai assaying 2.6% uranium and 1.2% vanadium species is subjected to sulfuric acid pug leaching. The extraction behavior of both metal values was first studied from their combined synthetic solution using DEHPA and Aliquat-336 extractants. The obtained results are then applied upon El-Sahu sulfuric acid leach liquor where after proper oxidation of the leach liquor, uranium was selectively extracted as cationic ions by DEHPA solvent, while the vanadium left behind was subsequently extracted as anionic ions using Aliquat-336. Normal 0 false false false EN-US X-NONE AR-SA MicrosoftInternetExplorer4